Gyrating machine.



No. 720,114. PAmENTED 111113.10, 1963.

(1. w. ooMBs. GYRATING MACHINE. APPLICATION FILED JULY 18, 1901.

H0 MODEL. V 2 SHEETS-SHEET 1.

2 a y Gaary 77./ 077,255 if M. if 7%@ No. 720,114.' l PATENTED 11513.10,190s.

- G.-W. GOMBS.

GYRATING MAGHINB,

APPLICATION FILED VJULY i8, 1901.

No MODEL.

Noam Pneus cu. #NOTO-uwe.. wAsHmoToN. n.1;

UNITED STATES PATENT OFFICE.

V GEORGE w. COMES, OE LEAvENwO'ETI-I, KANSAS.

GYRATING MACHINE.

SPECIFICATION forming part of Letters Patent No. '720,1 14, dated.vFebruary 10, 1903.

Application led July 18, 1901. Serial No. 68.765. (No model.)

T0 a/ZZ whom it may concer-rb:

Be it known that I, GEORGE W. COMES, a citizen ofthe United States,residing at Leavenworth, in the county of Leavenworth and State ofKansas, have invented certain new and useful Improvements in GyratingMachines, of which the following is a specification.

My invention relates to improvements in gyrating machines, especiallythat class employed in tlouring-mills; and it may be said to consist inthe novel arrangement. and construction of the supporting parts for thesieveboxes, whereby the latter when in motion are maintained in ahorizontal plane throughout' tion of a machine, partly in section,providedV with my improvements. Fig. 2 is a vertical cross-section ofsame, taken on line II II of Fig. 1. Fig. 3 is a broken plan View of theupper bridge-tree forming part of my invention. Fig. 4 is a plan view ofthe rectangular bearing-block which is interposed between the stationaryand movable framework. Fig. 5 is a broken plan view of the lowerbridge-tree forming part of my invention. Fig. 6 is a plan view of` amodified form of bearing-block. v

In the machine illustrated the stationary frame is pyramidal inform andconsists of two supporting-legs 1, united by upper and lower braces 2and 3, respectively. Said braces have centrally-located bearings 4 5 to-receive a rotatableV vertical shaft 6, having a rigidly-secured cup 7,which rests upon antifriction-balls S, interposed between cup 7andanother cup 9, suitably secured upon bearing 5 for the purpose ofassisting in supporting the shaft and its load when in motion with theleast possible friction.

10 indicates the customary balancing-- drums, rigidly secured to theopposite terminals of the shaft and provided with eccentrically-boredhubs 11 to receive crank-pins 12, which drive the sieve-boxes 12a. 13indicates the flanged drive-pulley, rigidly secured to the shafts 6. 14represents arms connecting the upper and lower portions of thesieve-boxes to the crank-pins. Said sieve-boxes are further securedtogether by two oppOsitely-located channel-bars 14, secured together attheir central portions by a supporting bridge-tree 1-5, arched at itscenter and having a central annular opening 16, which permits it togyrate around shaft G-without interfering therewith. Bridge-tree 15isprovided at its under side, contiguous to its annular opening, with twooppositely-disposed integral bearings 17, grooved to receive hardenedbearingblocks 18, provided with longitudinal ballraces 19, which restupon antifriction-balls 20. Balls 20 are supported by a rectangularbearing-block 2l, provided with lower grooved bearings 22 to receivehardened bearingblocks 23, with ball-races 24, which extend parallelwith ball-races 19 and between which the balls are interposed.Bearing-block 21 is also provided with upper grooved bearings 25,

similar to those above mentioned, and extendy ing-blocks 32'withball-races 33 to receive antifriction-balls 26. 1

In large machines, where the work is heavy, rollers 34 may besubstituted for the balls, :if desirable, to prolong the wearingqualities of the bearings.

By arranging the ball or roller bearings, as above described, thesieve-boxes when in motion are driven with the greatest economy of powerand at the same time held tO a positive and even course, thus insuringthe proper distribution of the stock over the screens, so the latter canperform their work of separating the stock into different grades ofHour.

Having thus described the invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a gyrating machine, a stationary frame, a centrally-locatedcompound bearing comprising a bearing on the stationary frame, anintermediate block arranged to reciprocate thereon, and an upper bearingadapted to reciprocate on the intermediate block at right angles to themovement of said block; an upright shaft with corresponding cranks oreccentrics above and below the compound bearing, and a gyrating bodysecured to the cranks or eccentrics, and the upper bearing,substantially as described.

2. In a `gyrating machine, a stationary frame, a central crank-shaftjournaled therein, a bridge-tree secured to the stationary frame andprovided with a central aperture for the passage of the crank-shaft, twodiametrically-disposed bearings on the upper surface of the bridge-tree,a bearing-block provided with a central aperture for the passage of thecrank-shaft, bearings on the under side thereof reciprocably mounted onthe bridge-tree bearings, diametricallyfdisposed bearings on the upperside of the bearingblocl; arranged at right angles to those on itsunderside, a bridge-tree secured to the gyrating body, and provided witha central opening for the passage of the crank-shaft, anddiametrically-disposed bearings on the under side thereof reciprocablymounted upon the upper bearings of the bearing-block, substantially asdescribed.

In a gyrating machine, a central stationary frame, a central crank-shaftjournaled therein, a bridge tree secured to the stationary frame andprovided with a central opening for the passage of the crank-shaft,bearings arranged on the upper side of the bridge-tree, a bearingblockreciprocably mounted upon said bearings, and provided with a centralopening for the passage of the crank-shaft, bearings 011 the uppersurface of the bearing-block arranged at right angles to those on itslower side, a bridge-tree reciprocably mounted upon said upper bearings,provided with a central opening for the crankshaft, and secured at itsopposite ends to the central portion of the gyrating body, substantiallyas described.

In testimony whereof I affix my signature in the presence of twoWitnesses.

GEORGE W. COMES.

Witnesses:

A. S. SCHOTT, F. D. CoMBs.

